Reuse existing variables. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@306586 91177308-0d34-0410-b5e6-96231b3b80d8

Author: espindola

lib/Target/X86/MCTargetDesc/X86MachObjectWriter.cpp

@@ -396,7 +396,7 @@ bool X86MachObjectWriter::recordScatteredRelocation(MachObjectWriter *Writer,
     if (!SB->getFragment()) {
       Asm.getContext().reportError(
           Fixup.getLoc(),
-          "symbol '" + B->getSymbol().getName() +
+          "symbol '" + SB->getName() +
               "' can not be undefined in a subtraction expression");
       return false;
     }
@@ -408,7 +408,7 @@ bool X86MachObjectWriter::recordScatteredRelocation(MachObjectWriter *Writer,
     // pedantic compatibility with 'as'.
     Type = A->isExternal() ? (unsigned)MachO::GENERIC_RELOC_SECTDIFF
                            : (unsigned)MachO::GENERIC_RELOC_LOCAL_SECTDIFF;
-    Value2 = Writer->getSymbolAddress(B->getSymbol(), Layout);
+    Value2 = Writer->getSymbolAddress(*SB, Layout);
     FixedValue -= Writer->getSectionAddress(SB->getFragment()->getParent());
   }
 
@@ -468,8 +468,8 @@ void X86MachObjectWriter::recordTLVPRelocation(MachObjectWriter *Writer,
                                                const MCFixup &Fixup,
                                                MCValue Target,
                                                uint64_t &FixedValue) {
-  assert(Target.getSymA()->getKind() == MCSymbolRefExpr::VK_TLVP &&
-         !is64Bit() &&
+  const MCSymbolRefExpr *SymA = Target.getSymA();
+  assert(SymA->getKind() == MCSymbolRefExpr::VK_TLVP && !is64Bit() &&
          "Should only be called with a 32-bit TLVP relocation!");
 
   unsigned Log2Size = getFixupKindLog2Size(Fixup.getKind());
@@ -480,15 +480,14 @@ void X86MachObjectWriter::recordTLVPRelocation(MachObjectWriter *Writer,
   // subtraction from the picbase. For 32-bit pic the addend is the difference
   // between the picbase and the next address.  For 32-bit static the addend is
   // zero.
-  if (Target.getSymB()) {
+  if (auto *SymB = Target.getSymB()) {
     // If this is a subtraction then we're pcrel.
     uint32_t FixupAddress =
       Writer->getFragmentAddress(Fragment, Layout) + Fixup.getOffset();
     IsPCRel = 1;
-    FixedValue =
-        FixupAddress -
-        Writer->getSymbolAddress(Target.getSymB()->getSymbol(), Layout) +
-        Target.getConstant();
+    FixedValue = FixupAddress -
+                 Writer->getSymbolAddress(SymB->getSymbol(), Layout) +
+                 Target.getConstant();
     FixedValue += 1ULL << Log2Size;
   } else {
     FixedValue = 0;
@@ -499,8 +498,7 @@ void X86MachObjectWriter::recordTLVPRelocation(MachObjectWriter *Writer,
   MRE.r_word0 = Value;
   MRE.r_word1 =
       (IsPCRel << 24) | (Log2Size << 25) | (MachO::GENERIC_RELOC_TLV << 28);
-  Writer->addRelocation(&Target.getSymA()->getSymbol(), Fragment->getParent(),
-                        MRE);
+  Writer->addRelocation(&SymA->getSymbol(), Fragment->getParent(), MRE);
 }
 
 void X86MachObjectWriter::RecordX86Relocation(MachObjectWriter *Writer,